Valve Lift Overlapping Effect by Analyzing Engine Charge Flow in Various Cam Profiles for on Modenas CT115s using CFD Simulation

[摘要] Cam profile plays a critical role which adjusts the valve lift to allow the air fuel mixture flow in into cylinder in order to obtain the optimum performance of engine. This paper reviews the effect of valve lift overlap by analyzing charge flow in various cam profiles for and determine the optimum overlapping valve lift to enhancement of cam performance. By using Ansys software, the parameters like volumetric efficiency, mass flow rate and velocity will be measured which ultimately make impact up on the engine power and torque. Therefore, for this study 0.5mm to 3mm are tested to figure out the effects in combustion process. Overall, by considering the discussion, the results shows that valve lift adjustment of 2mm for both intake and exhaust valve has the best performance among others.

[发布机构] School of Mechatronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis, Arau; 02600, Malaysia^1;School of Microelectronic Engineering, Universiti Malaysia Perlis, Pauh Putra Campus, Perlis Arau; 02600, Malaysia^2;Modenas Research and Development Division, Kawasan Perusahaan, Gurun, Kedah; 08300, Malaysia^3

[效力级别] 工业技术 [学科分类] 工业工程学

[关键词] Airflow patterns;Cam profile;CFD simulations;Combustion pro-cess;Intake and exhaust;Optimum performance;Valve lift;Volumetric efficiency